Minimal Twist is a twisty puzzle, related to the Rubik's Cube. It is a very minimalistic, skeletal design,even without stickers. The parts are held together by dovetail connections.The puzzle has the geometry of the Skewb puzzle.
I am always curious when I see your models: how well do they slide? It looks like the parts fit together perfectly; how much friction is there? Seeing 3D prints are often grainy, I imagine rubbing sandpaper together. Do you have a way of smoothing it out?
It looks like another ingenious puzzle. The rib-cage design makes it affordable too!